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Spearhead TWIGA 

320/420

 

 

14

14

14

14

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

Fold up parking stands and store safely. The machine cannot be 
unhitched without these stands down.

 

11 

 

 

12 

 
Operator’s guard – Use only tractors with 
safety glass windows. If the windows are 
not laminated safety glass, polycarbonate 
glazing must be fitted between operator 
and cab meshing. 
 
Shape mesh to cover all windows that the 
driver will look through to view flail head in 
any operating position.  Meshing can be 
retained by springs and clips supplied, but 
it is the operators responsibility to ensure 
guarding is firmly in place.

 

Summary of Contents for TWIGA 320

Page 1: ...Spearhead TWIGA 320 420 0 0 0 0 TWIGA Reach Mower 320 420 Edition 1 0 October 2011 Part No 8999059...

Page 2: ...nery Directive is supported by the following harmonized standards BS EN ISO 14121 1 2007 Safety of Machinery Risk Assessment Part 1 Principles Part 2 Practical Guide and Examples of Methods BS EN ISO...

Page 3: ...t Up 18 Warnings 19 Engaging Disengaging Head Drive 22 Transport To Work Position 23 Moving Into Transport Position 24 Cutting Sequence 25 Break Back 25 Wire Trap 26 High Voltage Cables 26 Option Opti...

Page 4: ...tant Note Important Note Important Note The information contained in this manual is correct at the time of publication However in the course of constant development changes in specification are inevit...

Page 5: ...cification Specification 320 420 Weight inc Oil Kg 1350 1370 Weight of head Kg 130 130 Tractor horse power 25 40 Min tractor weight Kg 1300 2000 Oil tank capacity ltr 60 60 Reach A m 3 2 4 2 Reach B m...

Page 6: ...tor has stopped spinning Check that all guards are properly fitted and there are no damaged or loose parts Particular attention should be given to the flails to ensure they are not damaged cracked or...

Page 7: ...elevant Handbook and are familiar with the controls Never use a machine that is poorly maintained or has guards that are damaged or missing Never allow an inexperienced person to operate the machine w...

Page 8: ...direction Work should be within 1 mile of the signs Work only when visibility is good and at times of low risk e g NOT during rush hour Vehicles should show an amber flashing light Vehicles should be...

Page 9: ...long as the engine is running Warning Shut off engine and remove key before performing maintenance or repair work Warning Carefully read operator s manual before handling this machine Observe instruct...

Page 10: ...rking order to hold the machine firmly Do not operate without checking chains and stabilisers are tight Spearhead particularly recommend turn buckle type stabiliser Set linkage lift rods to an equal l...

Page 11: ...ervice Department Failure to follow the correct procedure to attach unattached the machine could result in personal injury or machine damage Any resulting damage to a machine is not covered by warrant...

Page 12: ...rom a fused source which is controlled by the tractor s ignition key for the machine electric controls 2 3 Fit top link to machine and the tractor Complete with chain stabiliser brackets Chains supers...

Page 13: ...is vertical If fitting the P T O shaft for the first time measure and cut to the correct length 6 Fit the P T O shaft by connecting the tractor output shaft to the machine input shaft Warning Always s...

Page 14: ...orrect height and level ensure both stabilisers are at an equal length Once the stabilising bars are correctly fitted lower the tractor hydraulics allowing all the weight of the machine to be carried...

Page 15: ...safety glass windows If the windows are not laminated safety glass polycarbonate glazing must be fitted between operator and cab meshing Shape mesh to cover all windows that the driver will look thro...

Page 16: ...r oil leaks 4 Operate the arms through the full amount of travel check all movements are functioning correctly 5 Place flail head near ground in a safe position and with tractor revs low idle select s...

Page 17: ...roximately 1m out from machine main assembly 3 Disengage P T O 4 Slightly raise lower link arms with great care enough to carry sufficient weight to remove both stabiliser locking bolts 5 Lower all we...

Page 18: ...7 17 17 Layout Of Controls In The Cab Layout Of Controls In The Cab Layout Of Controls In The Cab Layout Of Controls In The Cab Electric Control MAIN ARM UP AND DOWN DIPPER ARM IN AND OUT HEAD CONTROL...

Page 19: ...g grass and light scrub Boot flails for trimming annual growth on hedges up to 20mm diameter NOT recommended for use on woody material over 25mm Reach Mowing Set Reach Mowing Set Reach Mowing Set Reac...

Page 20: ...ont cowl Do not operate Without front flaps Do not verge mow without a rear roller Do not verge mow with rear roller set too high remember the rear roller is used to control the cutting height Tractor...

Page 21: ...Front flap Roller Roller Roller Roller should be set to just clear the top of the hedge Hedge Trimming Hedge Trimming Hedge Trimming Hedge Trimming Flail is cutting upwards reducing flying debris to m...

Page 22: ...actice all these positions and be very familiar with your machine before ever attempting work Never operate above the recommended P T O speed of 540rpm Failure to heed this warning will result in seve...

Page 23: ...or decrease P T O speed rapidly this could seriously damage pumps and motor Cutter Bar Cutter Bar Cutter Bar Cutter Bar Description The optional 1 5m cutter bar is a robust construction of double fing...

Page 24: ...ed before dismounting the tractor Ensure no person or vehicle is in danger from falling debris in the working area Inspect the work area for hidden obstacles wire posts rocks etc which may damage the...

Page 25: ...main arm and slowly close head ram Finally disengage P T O drive Warning Avoid high transport speeds which will cause unnecessary strain on Machine and tractor Never travel with the reach ram away fr...

Page 26: ...red while travelling forward The break back link will operate if the machine is overloaded i e a dense patch of vegetation too high a forward speed and when working uphill The tractor must be halted a...

Page 27: ...P T O and stop engine before leaving cab High Voltage Cables High Voltage Cables High Voltage Cables High Voltage Cables Warning Wire is extremely dangerous and must be avoided at all times Inspect wo...

Page 28: ...ion i e filler plug Operating the Debris blower The fan is suitable for clearing cuttings off the highway we recommend the blower is used on final cut only and not continually on Excessive use may cau...

Page 29: ...Need to be greased daily Daily W eekly M onthly Rotor shaft bearings P t o shaft bearings P t o shaft tubes Pivot pins Roller bearings Oil tank Gearbox Motor drive Flail head Key Grease Oil Check Lubr...

Page 30: ...lly Replace with EP90 Do not over tighten oil plugs as this will damage the housing P T O Dismantle clean the input drive shaft sliding surfaces and re grease failure to do this will result in serious...

Page 31: ...nly genuine hoses a burst hose could be very dangerous When replacing hoses to avoid twisting fitting use two spanners to slacken and tighten Always check the yellow protective sleeve is in good order...

Page 32: ...e and is your responsibility to maintain a long reliable working life When tightening fittings always use two spanners when necessary and do not over tighten If a fitting leaks it will need to be repl...

Page 33: ...to rapid bearing wear and quickly cause the head to crack Blunt flails leave an untidy finish and absorb excessive power when re sharpening always wear protective clothing and goggles When flails are...

Page 34: ...move all detergents to avoid any discolouring or damage to paint Grease all grease points until fresh grease shows It is important where possible to store undercover to protect against rain and sunlig...

Page 35: ...ever stop or start rotor at high engine speed Never transport with P T O in gear Never operate in 1000 rpm P T O speed economy gear Regularly check condition of suction line hose Never operate above r...

Page 36: ...uch as blades flails paintwork tyres belts hydraulic hoses bearings bushes linkage pins top links ball ends unless there is a manufacturing or material defect or the cost of normal servicing items suc...

Page 37: ...Service Engineer within 1 month of the first anniversary of the date of sale and the Service Report form must have been completed and stamped by the servicing dealer or Spearhead Service Engineer and...

Page 38: ...Spearhead TWIGA 320 420 37 37 37 37...

Page 39: ...ead TWIGA 320 420 38 38 38 38 Spearhead Machinery Ltd Green View Salford Priors Evesham Worcestershire WR11 8SW Tel 01789 491860 Fax 01789 778683 www spearheadmachinery com enquiries spearheadmachiner...

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